Science & Mathematics - 2 February 2007

2007-02-02 04:18:53 · 7 answers · asked by PB_Smith 1 in Mathematics

2007-02-02 04:18:23 · 4 answers · asked by Anonymous in Engineering

I've drawn one structure where there's a -1 charge on one of the oxygens. In another structure, I've come up with a +1 charge on the other oxygen. Is the last structure correct? seeing that the molecule initially has a negative charge?

2007-02-02 04:17:55 · 5 answers · asked by Anonymous in Chemistry

Can anyone give me links to websites or explain to me the specific info and technology behind recombinant vaccines? I having trouble finding the info, would appreciate any help. Cheers

2007-02-02 04:17:43 · 1 answers · asked by kritta_17 1 in Medicine

what if the earth stoped rotating around the sun? And stopped roataing on it axis. And if the moon stopped roatating too? What would happen?

2007-02-02 04:16:57 · 20 answers · asked by tony 2 in Astronomy & Space

2007-02-02 04:15:20 · 1 answers · asked by Kristada 2 in Physics

Really easy to prove. Once and for all.
The super expensive SPACE TELESCOPE can point at the lunar landing sites and photograph the lunar buggy, the American Flag, all the footprints and the remains of the lunar module, including the camera and tri pod that filmed the take off without getting blown over............
Why do no such photos exist?.........I did put this question to the space agency who have been soaking up funds for donkeys years but perhaps NASA are too busy to explain.

I really would love to belive armstrong was THE MAN, but hey, I am not a sucker and I am having NONE of it.

2007-02-02 04:14:23 · 10 answers · asked by ktbaron 3 in Astronomy & Space

2007-02-02 04:14:21 · 5 answers · asked by berlie 2 in Engineering

2007-02-02 04:12:08 · 9 answers · asked by Anonymous in Medicine

I know it is circumference/diameter = pi, but what is the series equation?

2007-02-02 04:08:52 · 2 answers · asked by VJEMW 2 in Mathematics

Cannot believe that the earth has been able to deal with the thousands of forest fires that have occured every year yet cannot deal with what humans put into the atmosphear.

2007-02-02 04:07:23 · 15 answers · asked by Bill S 2 in Weather

im drawing a calibration curve for my physics coursework. its quite a steep, straight graph at first and then it makes a gentle curve. i'm able to make 3 lines of best fit that would describe the gradient of the graph well. but am i allowed to make 3 lines of best fit and therefore, get 3 different gradients for the curve?

2007-02-02 04:05:17 · 5 answers · asked by amandac 3 in Mathematics

I want to choose a career in the field of science except M.B.B.S. and engineering.

2007-02-02 04:04:44 · 13 answers · asked by Shallu 1 in Biology

What came first the chicken or the egg or microscopic bacteria hat developed and evolved over billions of years to become the bird that we now know today as the chicken?

2007-02-02 04:01:22 · 15 answers · asked by Anonymous in Biology

how should i take care of the eggs? what should i do?... theyre in this floating breeder thing...any helpful hints?...pleeeeeeeeeeease

2007-02-02 03:57:45 · 1 answers · asked by OOOMAR 1 in Zoology

Could you please tell me is it possibe.

2007-02-02 03:56:25 · 6 answers · asked by Arun Kumar 1 in Weather

I live in Florida and realized that I have no idea what to do if there is a tornado watch, warning, or if one hits my home. I have two small children- what should I do to prepare? What should I do if one hits my home?

2007-02-02 03:54:48 · 7 answers · asked by mfcarroll1102 1 in Weather

2007-02-02 03:53:50 · 6 answers · asked by sayee 2 in Astronomy & Space

I get the hickups at least 10 times a day. Why? What are hickups for?

2007-02-02 03:51:56 · 7 answers · asked by Anonymous in Biology

Do cons actually pay attention to real scientific answers?

2007-02-02 03:51:20 · 6 answers · asked by Anonymous in Other - Science

a rigid tank contains 6kg of an ideal gas at 3atm and 40 degree celcius. now a valve is opened and half of mass of gas is escaped.if the final pressure in the tank is 2.2 atm. find the final temperature.

2007-02-02 03:48:09 · 2 answers · asked by Anonymous in Engineering

Simplify and reduce to lowest terms.
1/(x+5y)-5/(x-5y)+3/(x^2-25y^2)

My solution: x+5y and x-5y cancel each other out leaving:
-4+3/x^2-25y^2 = 1/x^2-25y^2
I am not sure is this is the right way and if I left something out.
Please help.
Thanks

2007-02-02 03:47:20 · 9 answers · asked by bobbysgirlmeri 2 in Mathematics

...up to a maximum of thirty answers per hour and thirty votes per hour for 12 hours per day (when you reach a higher level where there is no limit on actions per day), then how long will it take to reach 1,000,000 Yahoo! Answers points?

Assume a rate of 50% Best Answers, and that no questions are asked, as this costs points.

2007-02-02 03:43:11 · 7 answers · asked by Anonymous in Mathematics

2007-02-02 03:42:54 · 10 answers · asked by zebbie g 2 in Zoology

Ahmed was traveling by a train (X). The train was going 45 Km per hour. Suddenly, another train (Y) was passing in the opposite way with a speed of 36 Km per hour. Y train took 6 seconds to pass through Ahmed’s train.


What was the length of the opposite train (Y)?

2007-02-02 03:42:31 · 5 answers · asked by Rajeev N 1 in Mathematics

2007-02-02 03:38:24 · 4 answers · asked by nnzcrl 1 in Chemistry

2007-02-02 03:38:10 · 7 answers · asked by camriddian 1 in Mathematics

Which one of the basic functions (linear, quadratic, rational, or exponential) is related to the arithmetic series?

2007-02-02 03:37:54 · 5 answers · asked by Malissa H 1 in Mathematics

An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while
returning to base camp. He was supposed to travel due north for 5.4 km, but when the snow clears, he discovers that he actually traveled 7.8 km at 53° north of due east.

(a) How far must he now travel to reach base camp?
km

(b) In what direction must he travel?
° (counterclockwise from due east)

2007-02-02 03:37:53 · 3 answers · asked by mehran_kimi 2 in Physics

I've been trying to teach myself relativity, but I'm stuck on a conceptual question involving Ehrenfest's Paradox. If you don't remember...the paradox involves a spinning disk. Presumably, the disk is Lorentz contracted along the direction of its motion but not along its radius. In other words, its circumference shrinks when it spins but its radius stays the same because its perpendicular to the disk's motion. Doesn't that mean that the ratio of the circumference of the disk to it's diameter will be greater than pi? How can the disk shrink while it's radius stays the same? How can that be? How is this paradox resolved? No comprendo Professor...que paso?

2007-02-02 03:37:21 · 3 answers · asked by Link 5 in Physics